Dogs Behaving (Very) Badly - Season 6 Episode 7 -

Graeme Hall helps owner Jill with her two collies, who go ballistic at the sight of her leaving the house, or when they're supposed to leave to go on a walk. He also meets rottweiler Bruno, who's been using his family's elderly West Highland terrier as a plaything, and dachshund Cocoa, who has a habit for barking whenever owner Sanjay tries to socialise with someone else.